What powers keramost.cz?
Last seen Aug 2026 · 16 technologies across 12 categories
Analytics
Google Analytics
since Apr 2019
CDN
cdnjs
since Oct 2025
Cloudflare
since Oct 2025
JavaScript libraries
Miscellaneous
HTTP/3
since Oct 2025
Open Graph
since Oct 2025
Programming languages
PHP
since Oct 2025
Security
reCAPTCHA
since Nov 2025
Tag managers
Google Tag Manager
since Dec 2025
UI frameworks
Tailwind CSS
since Oct 2025
Video players
YouTube
since Oct 2025
Web frameworks
Web servers
Webmail
Microsoft 365
since Oct 2025
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.79 / 10 · ranked #2,009,210 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 5.5 MB · 56 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Keramost (Czechia)
- Founded: 1994
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on Websupport (37.9.175.164, IPv6)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,303,677, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Google Analytics Dec 2025
- detected Google Tag Manager Dec 2025
- dropped Apache HTTP Server Nov 2025
- dropped Debian Nov 2025
- dropped Google Analytics Nov 2025
- dropped Lightbox Nov 2025
- dropped Prototype Nov 2025
- detected reCAPTCHA Nov 2025
- dropped script.aculo.us Nov 2025